Discussion
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- Question
If x + y + z = 0, then what is the value of (3y2 + x2 + z2 )/(2y2 ? xz)?
Options- A. 2
- B. 1
- C. 3/2
- D. 5/3
- Correct Answer
- 2
- 1. What is the value of 4600+540+1280+250+36 ?
Options- A. 69
- B. 68
- C. 70
- D. 72 Discuss
- 2. What is the value of 143 + 163 + 183 + ... + 303?
Options- A. 134576
- B. 120212
- C. 115624
- D. 111672 Discuss
- 3. A and B are positive integers. If A + B + AB = 65, then what is the difference between A and B (A, B ? 15)?
Options- A. 3
- B. 4
- C. 5
- D. 6 Discuss
- 4. Which of the following is TRUE?
Options- A. 1123>1294>15
- B. 1294>1123>15
- C. 15>1123>1294
- D. 15>1294>1123 Discuss
- 5. What is the value of S = 11x3x5 + 11x4 + 13x5x7 + 14x7 + 15x7x9 + 17x10 + ... upto 20 terms. Then what is the value of S?
Options- A. 6179/15275
- B. 6070/14973
- C. 7191/15174
- D. 5183/16423 Discuss
- 6. If P = 7 + 4?3 and PQ = 1, then what is the value of 1/P2 + 1/Q2 ?
Options- A. 196
- B. 194
- C. 206
- D. 182 Discuss
- 7. If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?
Options- A. 31
- B. 26
- C. 28
- D. 24 Discuss
- 8. x, y and z are real numbers. If x3 + y3 + z3 = 13, x + y + z = 1 and xyz = 1, then what is the value of xy + yz + zx?
Options- A. -1
- B. 1
- C. 3
- D. -3 Discuss
- 9. If (a + b)/c = 6/5 and (b + c)/a = 9/2, then what is the value of (a + c)/b?
Options- A. 9/5
- B. 11/7
- C. 7/11
- D. 7/4 Discuss
- 10. If x3 + y3 + z3 = 3(1 + xyz), P = y + z ? x, Q = z + x ? y and R = x + y ? z, then what is the value of P3 + Q3 + R3 ? 3PQR?
Options- A. 9
- B. 8
- C. 12
- D. 6 Discuss
Simplification problems
Search Results
Correct Answer: 68
Correct Answer: 111672
Correct Answer: 5
Correct Answer: 15>1123>1294
Correct Answer: 6070/14973
Correct Answer: 194
Correct Answer: 28
Correct Answer: -3
Correct Answer: 7/4
Correct Answer: 12
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